In 2008,around 596 000 t of aluminum dross was generated from secondary aluminum industry in China;however,it was not sufficiently recycled yet.Approximately 95% of the Al dross was land filled without innocent treatm...In 2008,around 596 000 t of aluminum dross was generated from secondary aluminum industry in China;however,it was not sufficiently recycled yet.Approximately 95% of the Al dross was land filled without innocent treatment.The purpose of this work is to investigate Al dross recycling by environmentally efficient and friendly methods.Two methods of Al dross recycling which could utilize Al dross efficiently were presented.High-quality aluminum-silicon alloys and brown fused alumina(BFA) were produced successfully by recycling Al dross.Then,life cycle assessment(LCA) was performed to evaluate environmental impact of two methods of Al dross recycling process.The results show that the two methods are reasonable and the average recovery rate of Al dross is up to 98%.As the LCA results indicate,they have some advantages such as less natural resource consumption and pollutant emissions,which efficiently relieves the burden on the environment in electrolytic aluminum and secondary aluminum industry.展开更多
The Mountain Brand brown fused alumina, with bauxite as the main raw material, is smelted at a temperature of 2000℃ in the most advanced dump arc furnace to produce crystals which will be smashed, shape-rebuilt, magn...The Mountain Brand brown fused alumina, with bauxite as the main raw material, is smelted at a temperature of 2000℃ in the most advanced dump arc furnace to produce crystals which will be smashed, shape-rebuilt, magnetically chosen and screened. Through a great effort, the brown fused alumina features high-intensity quality, great hardness, sharpness, strong grinding capacity展开更多
Hosted by The Technical Association of Refractories, Japan, 12th Unified International Technical Conference on Refractories （UNTECR） will be held in Kyoto, Japan from Oct. 31 to Nov. 2. 2011.
基金Project(07dz12028) supported by the Science Program of Science and Technology Commission of Shanghai Municipality,China
文摘In 2008,around 596 000 t of aluminum dross was generated from secondary aluminum industry in China;however,it was not sufficiently recycled yet.Approximately 95% of the Al dross was land filled without innocent treatment.The purpose of this work is to investigate Al dross recycling by environmentally efficient and friendly methods.Two methods of Al dross recycling which could utilize Al dross efficiently were presented.High-quality aluminum-silicon alloys and brown fused alumina(BFA) were produced successfully by recycling Al dross.Then,life cycle assessment(LCA) was performed to evaluate environmental impact of two methods of Al dross recycling process.The results show that the two methods are reasonable and the average recovery rate of Al dross is up to 98%.As the LCA results indicate,they have some advantages such as less natural resource consumption and pollutant emissions,which efficiently relieves the burden on the environment in electrolytic aluminum and secondary aluminum industry.
文摘The Mountain Brand brown fused alumina, with bauxite as the main raw material, is smelted at a temperature of 2000℃ in the most advanced dump arc furnace to produce crystals which will be smashed, shape-rebuilt, magnetically chosen and screened. Through a great effort, the brown fused alumina features high-intensity quality, great hardness, sharpness, strong grinding capacity
文摘Hosted by The Technical Association of Refractories, Japan, 12th Unified International Technical Conference on Refractories （UNTECR） will be held in Kyoto, Japan from Oct. 31 to Nov. 2. 2011.
